ATOC FINAL EXAM QUESTIONS AND 100%
VERIFIED ANSWERS
Methane (CH4), ozone (O3), and water vapor are greenhouse gases.
a. True
b. False
a. True
Which gas in the upper atmosphere shields Earth's surface from the sun's harmful
ultraviolet rays?
a. nitrogen
b. methane
c. ozone
d. chlorofluorocarbons
c. Ozone
Average atmospheric CO2 concentrations have ____ over the past 100 years.
a. slightly decreased
b. remained constant
c. significantly decreased
d. increased
d. Increased
Carbon dioxide is removed from the atmosphere through the process of ____.
a. fuel combustion
b. respiration
c. volcanic activity
d. photosynthesis
d. Photosynthesis
The "ozone hole" is observed above ____.
a. the equator
,b. Australia
c. Antarctica
d. Asia
c. Antarctica
Near Earth's surface, ____ occupies about 78% and ____ about 21% of the total volume of
dry air.
a. nitrogen; oxygen
b. hydrogen; oxygen
c. oxygen; hydrogen
d. nitrogen; water vapor
a. nitrogen; oxygen
The only substance found naturally in the lower atmosphere that can exist as a solid, a
liquid, and a gas is ____.
a. carbon dioxide
b. water
c. methane
d. ozone
b. water
Atmospheric concentrations of ____ can vary significantly depending on time and location.
a. hydrogen
b. water vapor
c. helium
d. argon
b. water vapor
The most abundant gases in Earth's present day atmosphere (by volume) are ____.
a. carbon dioxide and nitrogen
b. oxygen and water vapor
, c. nitrogen and oxygen
d. oxygen and helium
c. nitrogen and oxygen
Which chemical process is an example of condensation?
a. water vapor formation
b. cloud droplet formation
c. photosynthesis
d. ice formation
b. cloud droplet formation
The air pressure at the summit of Mount Everest is higher than the air pressure at sea
level.
a. True
b. False
b. False
The majority of atmospheric ozone (about 97%) is found in the ____.
a. thermosphere
b. mesosphere
c. stratosphere
d. exosphere
c. stratosphere
The vertical profile of ____ is variable in each layer ofEarth's atmosphere.
a. air temperature
b. air pressure
c. altitude
d. air density
a. air temperature
VERIFIED ANSWERS
Methane (CH4), ozone (O3), and water vapor are greenhouse gases.
a. True
b. False
a. True
Which gas in the upper atmosphere shields Earth's surface from the sun's harmful
ultraviolet rays?
a. nitrogen
b. methane
c. ozone
d. chlorofluorocarbons
c. Ozone
Average atmospheric CO2 concentrations have ____ over the past 100 years.
a. slightly decreased
b. remained constant
c. significantly decreased
d. increased
d. Increased
Carbon dioxide is removed from the atmosphere through the process of ____.
a. fuel combustion
b. respiration
c. volcanic activity
d. photosynthesis
d. Photosynthesis
The "ozone hole" is observed above ____.
a. the equator
,b. Australia
c. Antarctica
d. Asia
c. Antarctica
Near Earth's surface, ____ occupies about 78% and ____ about 21% of the total volume of
dry air.
a. nitrogen; oxygen
b. hydrogen; oxygen
c. oxygen; hydrogen
d. nitrogen; water vapor
a. nitrogen; oxygen
The only substance found naturally in the lower atmosphere that can exist as a solid, a
liquid, and a gas is ____.
a. carbon dioxide
b. water
c. methane
d. ozone
b. water
Atmospheric concentrations of ____ can vary significantly depending on time and location.
a. hydrogen
b. water vapor
c. helium
d. argon
b. water vapor
The most abundant gases in Earth's present day atmosphere (by volume) are ____.
a. carbon dioxide and nitrogen
b. oxygen and water vapor
, c. nitrogen and oxygen
d. oxygen and helium
c. nitrogen and oxygen
Which chemical process is an example of condensation?
a. water vapor formation
b. cloud droplet formation
c. photosynthesis
d. ice formation
b. cloud droplet formation
The air pressure at the summit of Mount Everest is higher than the air pressure at sea
level.
a. True
b. False
b. False
The majority of atmospheric ozone (about 97%) is found in the ____.
a. thermosphere
b. mesosphere
c. stratosphere
d. exosphere
c. stratosphere
The vertical profile of ____ is variable in each layer ofEarth's atmosphere.
a. air temperature
b. air pressure
c. altitude
d. air density
a. air temperature
